I just wanted to give a quick mention to ifixit.com. Once again they have saved me money and time by both providing the instructions and parts to repair my out of warranty MacBook Pro. A local shop quoted me almost $300 for the repair. I was able to do it myself for half that. After 4 years of being on the move, the optical drive finally gave up and stopped reading or writing CDs. I ordered a used drive and within 3 days it arrived. The installation instructions were detailed, easy to follow and provided a list of tools needed. After about 30 minutes of installation time I was able to perform a software update from a disc that I was previously unable to. If you are the DIY type, I highly recommend checking out ifixit first if you have an out of warranty Apple device that needs repaired.